Photodynamic Therapy (PDT) a skin treatment based on medical theory. It utilizes an LED light source in combination with a photosensitive cosmetic or medicine to treat various of skin problems such as acne, rosaceous, redness, papules, bumps, pustule. Besides, the LED photodynamic therapy (PDT), as a new method of cosmetic technology, has been frequently used for skin care purpose. The photon energy has positive effects on skin cells. It accelerates the cell growth, improve collagen and elastic generation, promote the micro-blood-circulation and improve the overall skin condition.